SLIP is now basically functional

git-svn-id: svn://svn.code.sf.net/p/nuttx/code/trunk@3386 42af7a65-404d-4744-a932-0658087f49c3

ChangeLog

@@ -1570,3 +1570,6 @@
 	  PullUp/Down Input Configuration.
 	* arch/arm/src/lpc17xx/lpc17_serial.h -- Now supports Auto-RTS and
 	  Auto-CTS modes.  This is needed to support SLIP.
+	* drivers/net/slip.c -- SLIP is now basically functional on the
+	  LPC17xx with some caveats as described in the TODO list under
+	  LPC17xx.

Documentation/NuttX.html

@@ -8,7 +8,7 @@
   <tr align="center" bgcolor="#e4e4e4">
     <td>
       <h1><big><font color="#3c34ec"><i>NuttX RTOS</i></font></big></h1>
-      <p>Last Updated: March 14, 2011</p>
+      <p>Last Updated: March 15, 2011</p>
     </td>
   </tr>
 </table>
@@ -2197,6 +2197,9 @@ nuttx-5.20 2011-xx-xx Gregory Nutt &lt;spudmonkey@racsa.co.cr&gt;
       PullUp/Down Input Configuration.
     * arch/arm/src/lpc17xx/lpc17_serial.h -- Now supports Auto-RTS and
       Auto-CTS modes.  This is needed to support SLIP.
+    * drivers/net/slip.c -- SLIP is now basically functional on the
+      LPC17xx with some caveats as described in the TODO list under
+      LPC17xx.
 
 apps-5.20 2011-xx-xx Gregory Nutt &lt;spudmonkey@racsa.co.cr&gt;
 

TODO

@@ -24,7 +24,7 @@ NuttX TODO List (Last updated March 15, 2011)
   (1)  ARM/C5471 (arch/arm/src/c5471/)
   (3)  ARM/DM320 (arch/arm/src/dm320/)
   (2)  ARM/i.MX (arch/arm/src/imx/)
-  (3)  ARM/LPC17xx (arch/arm/src/lpc17xx/)
+  (4)  ARM/LPC17xx (arch/arm/src/lpc17xx/)
   (7)  ARM/LPC214x (arch/arm/src/lpc214x/)
   (2)  ARM/LPC313x (arch/arm/src/lpc313x/)
   (3)  ARM/STR71x (arch/arm/src/str71x/)
@@ -779,6 +779,14 @@ o ARM/LPC17xx (arch/arm/src/lpc17xx/)
   Status:      Open
   Priority:    Medium-Low (unless you need the display on the LPC1766STK!)
 
+  Description: SLIP (Configuration olimex-lpc1766stk/slip-httpd) only works with VERBOSE
+               debug disabled.  For some reason, certain debug statements hang(?).
+               Also, this example does not use UART1's hardware flow control.  UART1
+               hardware flow control is partially implemented but does not behave as
+               expected.  It needs a little more work.
+  Status:      Open
+  Priority:    Low
+
 o ARM/LPC214x (arch/arm/src/lpc214x/)
   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 

configs/olimex-lpc1766stk/README.txt

@@ -838,10 +838,17 @@ Where <subdir> is one of the following:
 
        $ tcpdump -n -nn -i sl0 -x -X -s 1500
 
-    NOTES:  Only UART1 supports the hardware handshake.  If hardware
+    NOTE: Only UART1 supports the hardware handshake.  If hardware
     handshake is not available, then you might try the slattach option
     -L which is supposed to enable "3-wire operation."
 
+    NOTE: This configurat only works with VERBOSE debug disabled.  For some
+    reason, certain debug statements hang(?).
+    
+    NOTE: This example does not use UART1's hardware flow control.  UART1
+    hardware flow control is partially implemented but does not behave as
+    expected.  It needs a little more work.
+
  thttpd:
     This builds the THTTPD web server example using the THTTPD and
     the examples/thttpd application.

net/send.c

@@ -277,8 +277,7 @@ static uint16_t send_interrupt(struct uip_driver_s *dev, void *pvconn,
        * should already be in the ARP table.
        */
 
-#ifdef CONFIG_NET_ETHERNET
+#if defined(CONFIG_NET_ETHERNET) && defined (CONFIG_NET_ARP_IPIN)
-#ifndef CONFIG_NET_ARP_IPIN
       if (pstate->snd_sent != 0 || uip_arp_find(conn->ripaddr) != NULL)
 #endif
         {
@@ -294,7 +293,6 @@ static uint16_t send_interrupt(struct uip_driver_s *dev, void *pvconn,
           pstate->snd_time = g_system_timer;
 #endif
         }
-#endif /* CONFIG_NET_ETHERNET */
     }
 
   /* All data has been send and we are just waiting for ACK or re-transmit